4 US police officers shot dead

4 US police officers shot deadWashington, Nov 30 - Four US police officers were shot dead near an air force base in Washington State, US media reported.

The officers were gunned down Sunday while sitting at a coffee shop in Tacoma, near the McChord Air Force Base, broadcaster KING-TV reported.

Reports said local police as describing the incident as an "ambush" by a suspect or suspects.